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MULTIMAG

MULTIMAG (MULTIpurpose MAGnetic field system) is a facility for research
on magnetohydrodynamic (MHD) phenomena. As a rule static magnetic fields
damp flow, whereas alternating fields drive it. MULTIMAG can be used to
combine rotating, travelling, pulsating and static magnetic fields. Because
no ferromagnetic materials are used, any linear superpossition of various
field types are possible. The magnetic flux-density is variable over a
large range to carry out experiments in the laminar flow regime as well as
in the turbulent regime which are typical in industrial applications.
Investigations were conducted with rotating magnetic fields as low as
1/5 of the Earth magnetic flux-density (0.05mT). Magnetic flux-density
for rotating field can be increased up to 55mT at 1000Hz in the center of
the experimental volume. Static flux-density is up to 300mT may be used
for damp the melt flow and the accompanying turbulence.